Hey everyone,
The project I am part of at Iowa State University is about making hydraulic systems more precise and accurate. Hydraulic cylinder cushions decelerate cylinders piston and rod
assemblies at the end of the stroke. The commonly-used design process used to
determine the cushion geometry involves trial and error with physical
components and thus requires substantial costs and time. To address these limitations, a cylinder
cushion model was developed to enable virtual prototyping of cylinder cushions. To validate the models, a test stand was
designed and built with a hydraulic cylinder containing a cushion. To test cushion
model effectiveness in estimating the cushion response, large forces were
applied to the cylinder when retracting and approaching the end of stroke. The force
was a summation of weights on top and pressurized fluid provided by an
accumulator to the cylinder rod end.
Results from this apparatus will be used to
revise and improve the computer models. It is exciting to know that whatever we learn through this research can impact the hydraulic industry for better motion control. With this, fluid power and hydraulics will be able to boast high power density with precise movements.
Hope you guys are doing well as we move into the second half of our program.
- Seong
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